Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 180837
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
137 AM PDT FRI APR 18 2025
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR APRIL 17 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 64 2:01 PM 82 2021 68 -4 76
MINIMUM 51 5:49 AM 32 2004 44 7 46
2022
AVERAGE 58 56 2 61
PRECIPITATION (IN)
YESTERDAY T 0.00
MONTH TO DATE 0.23 0.96
SINCE OCT 1 15.85 19.19
SINCE JAN 1 7.87 13.15
DEGREE DAYS
HEATING
YESTERDAY 7 4
MONTH TO DATE 151 180
SINCE MAR 1 552 551
SINCE JUL 1 2407 2199
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE MAR 1 2 0
SINCE JAN 1 2 0
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION W (250)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 7.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 2:00 AM
LOWEST 65 3:00 PM
AVERAGE 81
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 86 2021
MINIMUM TEMPERATURE (F) 44 33 2005
SUNRISE AND SUNSET
APRIL 18 2025.........SUNRISE 6:29 AM PDT SUNSET 7:49 PM PDT
APRIL 19 2025.........SUNRISE 6:27 AM PDT SUNSET 7:50 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$